Tandem steam-engine.



Toa/ZZ whom, it may concern.-

Be it known that I, WILLIAM L. MoRRow,

a citizen ofthe United- States, and a resident of Stockton, county ofSan Joaquin, and State of California, have invented certain new anduseful Im rovements in Tandem Steamv Engines; and do declare thefollowing to be a full, clear, and exact description of the invention,such as will en able others skilled in the art to which it appertains tomake and use the same, reference being had to the accompanying drawings,and the characters of A following specification and claims.

In the drawings .similarfcharacters of reference indicate correspondingparts in all the views.

Figure 1 is a sectional view of the device. Fig. 2 is a side elevationofthe same. Fig. 3 is a sectional view on a line :l: of Fig. 2.

1 designates the cylinder, provided with a division-wall 2, whichdivides said cylinder into two chambers 3 and 4. At each end of saidcylinder and at both sides are-slots 5, lying parallel to each other,and 6 re resents similar slots in the top of said cylin er.

7 is a piston working in the chamber 3, and 8 is asimilar piston workingin the chamber 4 in a direction similar to the piston 7.

9 is anoblong driving-rod connected to the pistons 7 and 8 and extendingthrough the slots and along the sides of the cylinder 1. 10 representsguides arranged on the cylinder 1 to regulate the movement of thedrlvingrod 9. Y

11 represents exhaust-portskin the chambers 3 and 4. 0

12 is a shaft journaled beneath the cylinder 1 about the center thereof,onthe ends of which are secured cog-wheels 13 and 14, sald cog-wheelsbeing provided cogs onone side only, those on one being disposedopposite to those on the other.

15 and 16 are cog-rails on each side of the cylinder 1, secured to thedriving-rodi), the cogs on said rods coacting with the cogs on thewheels 13 and 14, those on the rail 15 running Speeicato'n-ofLettersPatent.

,l Application filed November 9, i905.. '.Serial iio. 286,512; i

' rotary motion to the fly-wheels.

over the wheel 13, and those onhelraillli; y

Patented Ocala, 1906. y

slide 19. On the top of the valve-seat 18 is a steam-chest 20, fromwhich oriiices 21 and 22 lead to the chambers 3 and 4, respectively.

he slide 19 is secured to the driving-rod 9 by rods 23, said rodsworking in the slots 6.' In

the slide 19 is an orifice 24, which coincides with the orifice 21 whenthe piston 7 is in its inner position, and is a similar orifice whichcoincides with the orifice 22 when the piston 8 is in its innerposition.

The operation is as follows: The steampasses throughhthe orifices 21 and24 into thev chamber 3 and expands and drives the piston 7 backward,which action 'pulls the piston 8 inward and causes the orince 25 tocoincide with the orifice 22,and then the steam'exhausts from thechamber 3, and' new steam passes into the chamber 4 and expands anddrives the piston 8 outward, pulling the piston 7 and its parts inward,&c. The cog-wheel arrangement 13 14 1'5 16 drives the fiy-wheelsciprocate and the rail 15 performs a like action' asthe rail 16, thusgiving continuous I have thus produced a double-cycle engine for steamwhich will produce more power than the oldstyle engines.

I have now entered into la detailed description of thepresent yandpreferred embodlment of my invention. I do not desire, however, to beunderstood as co myself .to such speciiic detail, as such changes andmodifications may be made in ractlce as fairly fall within the scope ofmy c aims. I claim as new and useful and desire to secure by LettersPatent- A 1. 'In an engine la cylinder 'provided with a division-walldividing said cylinder into two chambers, a piston working in eachchamber said pistons being connected by an oblong driving-rod extendingthrough and along the Vsides of said cylinder, slots in the top of saidIbl Y cylinder at both ends, a slide-valve arranged an oblong dri aboveseid cylinder with rods connecting the valve-rod to said driving-rodandworking in said slots, and a, steam-chest arranged vabove saidslide-valve, said valve admitting steam alternately into each of saidchambers, as set forth.

2. In an engine a cylinder provided with a; division-wall dividing saidcylinder into two chambers, a piston Working in each chamber, -rodconn'ectedto said pistons'and extendmg through and along the sides ofsaid c linders, a shaft journaled beneath said cylmder'about thecenter'thereof, cog-Wheels arranged on each end of said rails ooaotingwith the under side of one `of 2o said cog-wheels end the other with theu er side of the other oog-Wheel, as set forth y herein.

In' testimony whereof I ax my signature v in presence of two witnesses.

WILLIAM L. MoRRow.

Witnesses-z lPrmor S. WEBSTER,

JOSHUA B. WEBSTER.

